CSS 优先级和权重-复习

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>优先级和权重</title>
</head>
<body>
<h1 class="title test" id="active today">hello</h1>

    <div class="col-md-3 vip">
        Boottrap
    </div>
    <style>
        div.col-md-3.vip{
            border: solid red;
        }
        div.col-md-3 {
            border: solid #002;
        }
        body h1.title.test#active#today{
            color: darkorange;
        }
        body h1.title{
            color: red;
        }
      body h1{
            color: darkblue;
        }
        h1{
            color: darkgreen;
        }
        /* 权重计算 */
        /* id数量，class数量，标签数量 */
    </style>
</body>
</html>

相关文章